Dust-collector for drills.



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J. MAYER & 0. L. WALTON.

DUST' COLLECTOR FOR DRILLS.

APPLICATION FILED MAY 23, 1912.

Patented Apr. 1, 1913.

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avweutom COLUMBIA PLANOGRAPH C0,. \vAsHlN ooooooo c4 E. J. MAYER & 0. L. WALTON. DUST GOLLEGTOR FOR DBILLS.

APPLIOATION FILED MAY 23, 1912.

1,057,568. Patented Apr. 1, 1913.

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DUST-COLLECTOR FOR DRILLS.

To all whom it may concern:

Be it known that we, ERNEST J. MAYER and Oscar L. WALTON, citizens of the United States, residing at Hesperus and. Goldhill, respectively, in the counties of La Plata and Boulder and State of Colorado, have invented certain new and useful Improvements in DustCollectors for Drills, of which the following is a specification, reference being had to the accompanying drawings.

Our invention relates to new and useful improvements in dust collectors and more particularly to a dust collector for use in connection with drills and our object is to provide a device of this character which will be most eflicient for carrying out the objects for which the same is designed.

A further object of the invention resides in providing a device which is adapted to be clamped upon. the stem of the drill proper and which is further provided with means to absorb the shock incident to the operation of the drill.

Another object of the invention resides in providing means for clamping the device to the drill stem, which means is quickly and readily operated and capable of ready adjustment without the entire removal of said clamping member from the stem.

Still another object of the invention resides in the provision of a device which is extremely simple and durable in construction, inexpensive to manufacture and one which will be very eflicient and useful in operation.

l/Vith these and other objects in view, the invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims.

In the accompanying drawings forming a part of this application, Figure 1 is a side elevation of the device applied to use on a drill stem. Fig. 2 is a vertical section therethrough. Fig. 3 is a similar view through the device taken on a plane at right angles to the plane on which Fig. 2 is taken. Fig. 1 is a horizontal section therethrough, as seen on line 4 1, Fig. 2. Fig. 5 is a top plan view of the clamping portion of the device. Fig. 6 is a perspective view of the cap member removed, and Fig. 7 is a horizontal section as seen on lines 77, Fig. 1.

Specification of Letters Patent.

Application filed May 23, 1912.

Patented Apr. 1, 1913.

Serial No. 699,334.

In describing our invention, we shall refer to the drawings in which similar reference characters designate corresponding parts throughout the several views and in which- 1 indicates a body which is provided with a cylindrical bore and has a portion of the outer face thereof designed somewhat conically and also formed on one side thereof is a spout-like attachment 2 which communicates with a substantially annular groove or channel 3 formed in the upper portion of the body and surrounding the central bore. This body member 1 is mounted on a tubular bearing member 41-, the lower end of which is provided with an annular flange 5, upon which said body rests, while the upper portion is threaded as shown at6 to receive in engagement therewith a substantially frusto-conical head or cap 7, said cap, when properly positioned on the bearing being adapted to securely retain the body in position on the bearing. Disposed within this tubular bearing member 4: is a coil spring 8, the one end coil of which rests in engagement with an annular shoulder 9 formed in said bearing, while the opposite end coil is adapted to contact with the peripheral edge of a sleeve-like member 10. This sleeve-like member 10 is adapted to slide within the bearing 1, said sleeve like member being guided in its movement and held in position with respect to the bea ring 1 by means of the bolts 11 which extend through openings in a flange 12 in said member 10 and which are engaged with threaded sockets 13 formed in the flange 5 of said bearing. Also held to the flange 12 of the member 10, by means of the bolts 11 is a clamping member 14, said bolts 11 extending through the upper peripheral flanges 16 of said clamping member and this clamping member 1a which is substantially sleevelike in design is held in engagement with the stem 17 of a drill proper by means of an eye bolt 18 which extends through the ends of said member 14. Pivotally held on the eye portion of the bolt 18 is a cain lever 19 which, it will be understood, will permit the clamping member to be slightly released from clamping engagement with the stem 17 when moved in one direction, thereby eliminating the necessity of entirely removent instance, a stem designed in the form of a cross in section, has been provided so that the opening in the cap member 7 through which said stem projects is similarly designed and as the clamping ring or collar lt is substantially circularly designed in cross section, some means must also be provided to aid in the clamping of the same to said cross-shaped stem. To this end, the four pieces 20 are provided and riveted at predetermined portions on the inner periphery of said member let. The same are desi ned substantially triangular in cross section, one wall thereof being somewhat arouately designed, incident to the curvature of the inner wall of the member 14 and it will be seen that the same may be disposed in the spaces between the stem so that the clamping member may be readily and securely fitted thereon.

The spout-like projection 2 formed on the body 1 of the device is adapted to be engaged with one end of a tubular flexible connection which, in turn, leads to a receptacle (not shown), whereby dust collected in the groove 3 from the drilling apparatus may be conducted to said receptacle. Also mounted in the outer end of the body member 1 and fitted to rest on an internal annular shoulder 22 formed thereon is a circular rubber bumper 23 which is adapted to contact with the rock to prevent unnecessary jar on the device.

From the foregoing description of the construction of our device, theap-plication thereof to a device and the operation thereof will be readily understood and it will be seen that we have provided a most eflicient Y dust collector for use in connection with drilling devices. It will further be seen that we have provided means for the clamping of the same directly on the drill stem proper and have further provided shock absorbing means in connection with the de vice so that the jolting and jarring incident to the drill operation will not affect the device to any appreciable extent. It will still further be seen that in view of the improved clamping means which we have provided, the same may be adjusted on the drill stem without affecting the main clamping portion of the device and it will still further be seen that the same is designed to fit snugly about the particular shape drill stem provided.

From the foregoing it will be seen that we have provided a device which is extremely simple and durable in construction, inexpensive to manufacture and one which will be very eflicient and useful in operation.

Vhile we have particularly described the elements most well adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention.

It will, of course be understood that some form of connection will be made with the outlet pipe 2, whereby the dust collected may be conducted to a receptacle (not shown).

Having thus described this invention, what we claim is 1. A dust collector comprising a tubular body, said body having an annular groove t-herewithin surrounding the bore thereof, a spout-like attachment formed on said body communicating with said groove, a tubular bearing member for said body, means to secure said body on the bearing member, and means to clamp the device to a drill stem.

2. A dust collector comprising a tubular body member, said body member having an annular groove formed therewithin, and surrounding the bore thereof, a spout-like attachment formed on said body engaging with said groove, a tubular bearing member for th body, means to secure the'body on said bearing member, means in connection with said bearing member to secure the device to a drill stem, and a shock absorbing means between said clamping means and said bearing member.

3. A dust collector comprising a tubular body member, said body member having an annular groove formed therewithin and surrounding the bore of said body, a spout-like attachment formed on said body communicating with said groove, a tubular bearing member upon which said body is mounted, means to secure the body to said bearing member, a sleeve-like member disposed in the inner end of said bearing member, a spring member disposed within said bearing member to normally force said sleevelike member outwardly, means to limit the outward movement of said sleeve-like member, and means in connection with the sleevelike member to clamp the device to a drill stem.

4. A dust collector comprising a tubular body member provided with an annular groove therewith surrounding the bore of said body, a spoutlike attachment formed on the body member communicating with said annular groove, a tubular bearing member for the body, provided with an annular flange at one end thereof upon which said body rests, said tubular member being also provided with an internal annular shoulder, a cap member applied to the outer end of said bearing member to securely retain said body member thereon, a sleeve-like member having a portion thereof disposed in the inner ends of said tubular member, a coil spring disposed within said bearing member between the shoulder therein and said sleeve-like member to normally force the latter outwardly, means to limit the outward movement of said sleeve-like member, and means in connection with said sleeve-like member to clamp the device to a drill stem.

5. A dust collector comprising a tubular body member provided with an annular groove surrounding the bore of said body, a spout-like attachment formed on said body communicating with the annular groove therein, a tubular bearing member provided with an annular flange at the inner end thereof upon which said body rests, means to securely retain said body on the bearing member, a sleeve-like member having a portion thereof extended Within the inner end of said tubular member, the outer end of the sleeve-like member being provided with an annular flange, a coil spring disposed within the bearing member to normally force said sleeve-like member outwardly, a clamping band provided with flanges at one end thereof, abutting the annular flange of said sleeve-like member, and bolts eX- tending through the flanges of said clamping bands and sleeve-like member and having the free ends thereof securely engaged in the flange of said bearing member, whereby the heads of said bolts Will limit the movement of said sleeve-like and clamping members, under tension of the coil spring Within the bearing member.

In testimony whereof, We hereunto aflix our signatures in the presence of two Witnesses.

ERNEST J. MAYER. OSCAR L. WALTON.

Witnesses for E. J. Mayer:

GEO. W. GRAVES, L. C. HAsKELL. Witnesses for O. L. WValton:

J. E. DE KALB, J NO. MossMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

